Table of Contents

Theoretical Ex-Rights Price (TERP)

The Theoretical Ex-Rights Price (TERP) is the estimated market price of a company's shares immediately after a rights issue takes place. Think of it as a calculated benchmark, not a guaranteed trading price. When a company offers existing shareholders the right to buy new shares, usually at a discount, the total number of shares increases. This naturally affects the price of each individual share. The TERP provides a quick, unemotional calculation of what the new share price should theoretically be, assuming the only change to the company is the fresh cash received from the rights issue. It's a weighted average, blending the value of the old shares trading at their cum-rights price (price before the rights are factored out) with the value of the new shares being issued at a lower subscription price. In essence, it answers the question: “If we just account for the new shares and cash, what should the share price be tomorrow morning?”

Why Should You Care About TERP?

In the world of investing, a rights issue can feel a bit like a pop quiz. Do you buy the new shares? Do you sell your rights? Do you do nothing? The TERP is your cheat sheet for the first part of that quiz. Its primary job is to help you understand and quantify the impact of dilution. When new shares are born, the value of your existing holding is spread over a larger number of total shares, which “dilutes” your ownership percentage and typically causes the share price to drop. The TERP gives you a solid reference point for this expected drop.

Cracking the Code - How TERP is Calculated

Let's put on our math hats. Don't worry, this is simpler than it sounds and requires no advanced calculus, just some basic arithmetic.

The Ingredients

To calculate the TERP, you need four key pieces of information:

The Recipe (The Formula)

The logic is to add the total value of the old shares to the cash coming in from the new shares, and then divide that by the new total number of shares. TERP = [ (Value of All Existing Shares) + (Proceeds from New Shares) ] / (New Total Number of Shares) Or, more formally: TERP = [ (No. of Old Shares x Cum-Rights Price) + (No. of New Shares x Subscription Price) ] / (No. of Old Shares + No. of New Shares)

A Practical Example

Let's imagine “Castle Holdings PLC” wants to raise some money.

  1. It currently has 10,000,000 shares outstanding.
  2. The current market price (cum-rights) is $5.00 per share.
  3. It announces a 1-for-4 rights issue at a subscription price of $4.00 per share.

Let's do the math step-by-step:

  1. 1. Find the value of the existing shares:

10,000,000 shares x $5.00/share = $50,000,000

  1. 2. Find the number and value of the new shares:

Number of new shares = 10,000,000 / 4 = 2,500,000 new shares.

  Proceeds from new shares = 2,500,000 shares x $4.00/share = **$10,000,000**
- **3. Find the new total value and total number of shares:**
  New total value = $50,000,000 (old) + $10,000,000 (new) = **$60,000,000**
  New total shares = 10,000,000 (old) + 2,500,000 (new) = **12,500,000** shares
- **4. Calculate the TERP:**
  TERP = $60,000,000 / 12,500,000 shares = **$4.80** per share.

So, the theoretical ex-rights price for Castle Holdings PLC is $4.80.

The Real World: TERP vs. Market Price

In a perfect world, the actual market price would open exactly at the TERP. But we don't live in a perfect world; we live in a market driven by humans. The actual ex-rights price often deviates from the TERP because the market is constantly pricing in new information and sentiment. Factors that cause the deviation include:

A Value Investor's Perspective

A value investor acknowledges the TERP as a useful, quick calculation but sees it for what it is: simple arithmetic. It tells you about price, not value. The real work for a value investor begins where the TERP calculation ends. The crucial questions are not about the math, but about the business:

Ultimately, the TERP is a signpost, not a destination. It gives you your bearings on the morning of the ex-rights day, but a value investor's focus remains fixed on the long-term value of the underlying business.